Nonlinear system identification using discrete-time recurrent neural networks with stable learning algorithms

  • Authors:
  • Wen Yu

  • Affiliations:
  • Departamento de Control Automatico, CINVESTAV-IPN, A.P. 14-740, Av. IPN 2508, México D.F. 07360, Mexico

  • Venue:
  • Information Sciences—Informatics and Computer Science: An International Journal - Special issue: Informatics and computer science intelligent systems applications
  • Year:
  • 2004

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Abstract

In general, neural networks cannot match nonlinear systems exactly. Neuro identifier has to include robust modification in order to guarantee Lyapunov stability. In this paper input-to-state stability approach is applied to access robust training algorithms of discrete-time recurrent neural networks. We conclude that for nonlinear system identification, the gradient descent law and the backpropagation-like algorithm for the weights adjustment are stable in the sense of L∞ and robust to any bounded uncertainties.